Immune System CD8 surface antigen is present in both (a) and (b) cytotoxic T cells suppresssor T cells none of these both (a) and (b) cytotoxic T cells suppresssor T cells none of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Natural killer cells are involved in allograft rejection non-specific killing of virus transformed target cells all of these tumour rejection allograft rejection non-specific killing of virus transformed target cells all of these tumour rejection ANSWER DOWNLOAD EXAMIANS APP
Immune System T cell receptors (or TCR) on CD4+ T cells recognize peptides associated with MHC class II molecules recognize peptides not associated with MHC molecules recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens recognize peptides associated with MHC class II molecules recognize peptides not associated with MHC molecules recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following(s) is/are the determinants of antigenicity? Foreignness Size of the antigen Chemical nature All of these Foreignness Size of the antigen Chemical nature All of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Treatment with bacterial endotoxins results blast formation in T cells B cells monocytes none of these T cells B cells monocytes none of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B one marrow stem cells migrate to the thymus and develop into B cells B cells synthesize antibodies and put them on their cell surface B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells B cells synthesize antibodies and put them on their cell surface B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B cells can undergo class switching and produce a different antibody type ANSWER DOWNLOAD EXAMIANS APP
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